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FPC Numbering for Interfaces in TXP-T1600 Configuration

 

A routing matrix with the TXP-T1600 configuration can consist of up to four T1600 routers (also referred to as line-card chassis), which are assigned numbers from 0 through 3 depending on the chassis ID setting. In the Junos OS CLI, lcc 0 through lcc 3 are used to refer to T1600 routers in a routing matrix with the TXP-T1600 configuration. Each T1600 router can contain up to eight Flexible PIC Concentrators (FPCs) in FPC hardware slots labeled 0 through 7. Therefore, in the TXP-T1600 configuration, a routing matrix with a TX Matrix Plus router can contain up to 32 FPCs.

In the Junos OS CLI, an interface name has the following format:

When you specify the FPC number for a T1600 router in a routing matrix, Junos OS determines which T1600 router contains the specified FPC. Table 1 shows the basic correspondence between FPC hardware slot numbers (0 through 7), which are labeled on the T1600 chassis, and routing matrix FPC numbers (0 through 31), which are used in the Junos OS CLI.

Table 1: FPC Numbering for up to Four Routers in a Routing Matrix

T1600 Router

in a Routing Matrix (TXP-T1600 Configuration)

Basic Correspondence of FPC Numbering

FPC

Hardware Slot Numbers

Global

FPC Numbers

LCC 0

0–7

0–7

LCC 1

0–7

8–15

LCC 2

0–7

16–23

LCC 3

0–7

24–31

To easily convert an FPC hardware slot number on a specific LCC (T1600 router) in a routing matrix to the corresponding global FPC number (routing matrix FPC number), use the conversion chart shown in Table 2. You can use the converted FPC number to configure the interfaces on the TX Matrix Plus router in your routing matrix.

Table 2: FPC Numbering for up to Four T1600 Routers in a Routing Matrix Conversion Chart

Conversion Chart for FPC Numbering

 

 LCC 0 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-1/0/0, the global FPC number 1 refers to the FPC hardware slot 1 in the T1600 router lcc0.

Global FPC Numbers

0

1

2

3

4

5

6

7

 

 LCC 1 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-11/2/0, the global FPC number 11 refers to the FPC hardware slot 3 in the T1600 router lcc1.

Global FPC Numbers

8

9

10

11

12

13

14

15

 

 LCC 2 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-20/0/1, the global FPC number 20 refers to the FPC hardware slot 4 in the T1600 router lcc2.

Global FPC Numbers

16

17

18

19

20

21

22

23

 

 LCC 3 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-31/1/0, the global FPC number 31 refers to the FPC hardware slot 7 in the T1600 router lcc3.

Global FPC Numbers

24

25

26

27

28

29

30

31

You can use a CLI operational command to display the numbers of the connected FPCs in a routing matrix. To display the FPC numbers in both global numbering mode (from 0 through 31, as used to specify an interface name in a routing matrix) and the associated local numbering mode (LCC number and FPC physical slot number), you can use various forms of the show chassis location command. For more information, see Displaying Chassis Physical Locations for a Routing Matrix with a TX Matrix Plus Router.